聚腺苷酸 meaning in English

polyadenylic acid

It has been known that polyadenylation of 3 " end of mrna in prokaryotes is different from that of eukaryotes . the poly ( a ) tracts in bacteria are generally short , ranging from 15 - 60 adenylates residues and associated with only 2 - 60 % of the molecule of a given mrna species . mrna polyadenylation of eukaryotes always occurs in the untranslated region , 10 - 30 nucleotides downstream of the hexanucleotide sequence aauaaa
现在普遍认为细菌许多mrna3 ’端存在多聚腺苷酸尾，但其长度通常较短，大约在15 - 60腺苷酸残基范围，且对某一mrna而言，仅有2 - 60的分子被多聚腺苷酸化。
Is toxic to tenebrio molitor l . . the homological cry3aa gene was modified according to the characters of poplus genes and the other features of eukaryotic gene , and was artificially synthesized . the original and modified homological c / y3aa gene were cloned into binary vector pb121 and pbin438 respectively , and transplanted into 84k clone ( p . tomentos x p . glandulossa ) to breed new anti - insects tree species
通过对氨基酸密码子的偏好、使用频率、多聚腺苷酸信号序列( ppss ) 、 mrna不稳定序列( dst )以及kozak等结构的优化改造，人工设计、合成了预期能在杨树中高效表达的毒蛋白基因modifiedcry3aa同源基因； ( 4 )利用强启动子表达载体pet30 - b完成了cry3aa同源基因在大肠杆菌中的表达。